X-ray calculation tomographic scanner and x-ray detecting system

A detection system and ray technology, applied in computerized tomography scanners, echo tomography, etc., can solve the problem of increased space for the detection system, and achieve the effects of improving image quality, high stability, and reducing radiation noise

Active Publication Date: 2006-06-07
TOSHIBA MEDICAL SYST CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, both techniques lead to an unacceptably large increase in the space for arranging the detection system, so neither technique is a practical solution to the problem

Method used

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  • X-ray calculation tomographic scanner and x-ray detecting system
  • X-ray calculation tomographic scanner and x-ray detecting system
  • X-ray calculation tomographic scanner and x-ray detecting system

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0046] Refer below Figure 1-9 The first embodiment will be described.

[0047] figure 1 A multi-slice X-ray CT scanner according to a first embodiment of the present invention is shown. This multi-slice CT scanner is capable of performing not only multi-slice helical scans, but also conventional scans (single-slice scans and multi-slice scans). like figure 1 As shown, the multi-slice CT scanner 10 includes a bed (not shown) on which a body (patient) to be examined is located, a base frame G having a diagnostic cavity OP for inserting a body P, for acquiring a body P The projection image data and a data processing unit U are used to control the work of the entire basic frame G, reconstruct the projection data into an image and display the final image.

[0048] The bed includes an upper deck that can be slid along its length by a bed drive unit (not shown). In most cases, the body P is positioned so that the axis of the body is parallel to the length of the bed.

[0049] ...

no. 2 example

[0081] Next, a second embodiment of the present invention will be described with reference to FIGS. 13-15.

[0082] The second embodiment relates to the technique of adjusting the voltage of each detector module 14n of the X-ray detection system 14 in the X-ray CT scanner. The X-ray CT scanner according to the second embodiment is substantially similar to the scanner according to the first embodiment described above. Parts similar to those in the first embodiment are denoted by similar reference numerals, and description will not be repeated here.

[0083] In the second embodiment, as shown in FIG. 13, each detector module 14n has a power connector 61 and a voltage regulator on the surface of the printed circuit board 141 facing the DAS. like Figure 14 As shown, the power connector 61 of each detector module 14n is connected to the output terminal of the power supply 63 through the cable 64, so that power is supplied to the voltage regulator 62 through the power connector 6...

no. 3 example

[0089] Refer below Figure 16 and 17 A third embodiment of the present invention will be described.

[0090] The third embodiment relates to the power supply line structure of each detector module 14n of the X-ray detection system 14 in the X-ray CT scanner. The X-ray CT scanner according to the second embodiment is basically similar to the scanner according to the first embodiment described above, except for the structure of the power cord.

[0091] In the X-ray detection system 14 according to the present embodiment, as Figure 16 As shown, the power lines supplying the (positive) power supply voltage to the individual detector modules 14n consist of flat metal strips 71 . More specifically, the power supply voltage is supplied from the power supply 72 to the X-ray detection system 14 through the cable 73 , and further supplied to each detector module 14 n in the X-ray detection system 14 through the metal strip 71 . like Figure 17 As shown, metal strip 71 has branches...

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Abstract

The present invention provide a kind of X-ray detection system, which includes one detector for detecting X-ray passing through inspected body and generating analog electric signal corresponding to the X-ray for each channel; one data acquisition unit comprising several circuit modules with circuits in the number corresponding to the channel number to convert the analog signals into digital signal for output; and one phase control unit for controlling the phase the circuit modules in the data acquisition unit and dividing the circuit modules into several groups operating synchronously with the clock signal possessing different phases in different groups.

Description

technical field [0001] The present invention relates to X-ray computed tomography scanners and X-ray detection systems, and more particularly, to X-ray computed tomography scanners and X-ray detection systems in which problems due to problems in the detector or DAS are solved Problems caused by noise or fluctuations in operating voltage are eliminated, thereby achieving stable and reliable operation. Background technique [0002] An X-ray computed tomography scanner (hereinafter referred to as an X-ray CT scanner) is known as a computed tomography device. For a long time, X-ray CT scanners have been widely used as tools for medical diagnosis and various medical research work. Since its inception, X-ray CT scanners have evolved considerably and are still evolving. [0003] Early types of X-ray scanners were only able to obtain images of a single slice at a time, making it difficult to obtain a large number of image slices of a large area of ​​the body being examined in a sh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B6/03
Inventor 杉原直树中山道人铃木达郎
Owner TOSHIBA MEDICAL SYST CORP
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